Perhaps she's about to do a suicide run while spraying her mouth with chrome pain. "WITNESS ME!" followed by a chorus of "WITNESS!". Wonder who Immortan Joe is.
On an off topic note. This is probably the closest we'll get to a true propa Orky film. Less Dakka though but come on they're even called Warboys.
Thanks to Re-class, I can see her boat speeding up then veering right into the path of Wo's gigantic as one. Ru-class will be screaming right into the screen before impact. Typical Mad Max fare LOL!